Home / 2,764.38-3,820.20-2,057.28

Finding the Fourth Proportional to 2,764.38, 3,820.20 and 2,057.28

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Solution

The fourth proportional to 2,764.38, 3,820.20 and 2,057.28 is: 2,843.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.38 : 3,820.20 = 2,057.28 : x
  2. Step 2: Convert to fraction form
    2,764.38/3,820.20 = 2,057.28/x
  3. Step 3: Cross multiply
    2,764.38x = 3,820.20 × 2,057.28
  4. Step 4: Simplify right side
    2,764.38x = 7,859,221.06
  5. Step 5: Solve for x
    x = 7,859,221.06/2,764.38
  6. Step 6: Final answer
    x = 2,843.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.